Q1. Which of the following is the biggest geographical region of Rajasthan by area?
A Semi-dry region
B Aravalli region
C Western desert plain region Correct
D Eastern plain region
Explanation
Rajasthan is commonly divided into major physiographic regions, and the western desert plain occupies the largest share of the state’s area. It covers the Thar desert belt and extends across large western and north-western districts. The semi-dry region is smaller and forms a transition belt. The Aravalli region is a long hill tract but not the largest by area. The eastern plain is agriculturally important, yet it covers less area than the western desert plain. Hence, the largest geographical region by area is the western desert plain region.